Abstract: One aspect of the invention is directed to a security system for a golf bag with a set of golf clubs. The invention may utilize a small, lightweight control subsystem which is easily mounted on a golfer's existing golf bag to protect both the golf clubs and the bag from theft. In another embodiment, the golf security system may be built into or integrated with a golf bag. The golf security system utilizes the electronic, programmable control subsystem which is designed to prohibit false alarms and senses minute unauthorized changes in the electromagnetic field defined by a detection loop. The control subsystem may include an input device such as a keypad, an electronic key, or other similar input means to arm and disarm the system. In one embodiment, a tag having high magnetic permeability is attached to golf clubs having non-metallic shafts.